Standards: Common Core State Standards

2.OA Operations and Algebraic Thinking

2.OA.A.1 Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

2.OA.C Work with equal groups of objects to gain foundations for multiplication.

2.OA.C.3 Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.

Even and odd: counting objects (Second grade - A.6)

Even or odd I (Second grade - A.7)

Even or odd II (Second grade - A.8)

Even and odd numbers on number lines (Second grade - A.9)

Add doubles using models (Second grade - E.9)

Add doubles (Second grade - E.10)

Add doubles - complete the sentence (Second grade - E.11)

2.OA.C.4 Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.

2.NBT Number and Operations in Base Ten

2.NBT.A Understand place value.

2.NBT.A.1 Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.g., 706 equals 7 hundreds, 0 tens, and 6 ones. Understand the following as special cases:

Place value models - tens and ones (Second grade - M.1)

Place value models - up to hundreds (Second grade - M.2)

Value of underlined digit - tens and ones (Second grade - M.4)

Convert to/from a number - tens and ones (Second grade - M.9)

2.NBT.A.1a 100 can be thought of as a bundle of ten tens - called a "hundred."

2.NBT.B.6 Add up to four two-digit numbers using strategies based on place value and properties of operations.

Add three numbers up to two digits each (Second grade - G.13)

Add four or more numbers up to two digits each (Second grade - G.15)

2.NBT.B.7 Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

2.MD.A.4 Measure to determine how much longer one object is than another, expressing the length difference in terms of a standard length unit.

Customary units of length: word problems (Second grade - S.4)

Metric units of length: word problems (Second grade - S.10)

2.MD.B Relate addition and subtraction to length.

2.MD.B.5 Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units, e.g., by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.

Customary units of length: word problems (Second grade - S.4)

Metric units of length: word problems (Second grade - S.10)

2.MD.B.6 Represent whole numbers as lengths from 0 on a number line diagram with equally spaced points corresponding to the numbers 0, 1, 2,..., and represent whole-number sums and differences within 100 on a number line diagram.

Number lines - up to 100 (Second grade - A.4)

2.MD.C Work with time and money.

2.MD.C.7 Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.

2.MD.D Represent and interpret data.

2.MD.D.9 Generate measurement data by measuring lengths of several objects to the nearest whole unit, or by making repeated measurements of the same object. Show the measurements by making a line plot, where the horizontal scale is marked off in whole-number units.

Interpret line plots (Second grade - R.6)

Create line plots (Second grade - R.7)

2.MD.D.10 Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information presented in a bar graph.

Interpret bar graphs (Second grade - R.3)

Which bar graph is correct? (Second grade - R.4)

Create bar graphs (Second grade - R.5)

Interpret pictographs (Second grade - R.8)

Create pictographs (Second grade - R.9)

2.G Geometry

2.G.A Reason with shapes and their attributes.

2.G.A.1 Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.

Identify 2-dimensional shapes (Second grade - T.1)

Identify 3-dimensional shapes (Second grade - T.2)

Identify 2-dimensional and 3-dimensional shapes (Second grade - T.3)

Count sides and angles (Second grade - T.4)

Count edges, vertices, and faces (Second grade - T.5)

Compare sides and angles (Second grade - T.6)

Compare edges, vertices, and faces (Second grade - T.7)

2.G.A.2 Partition a rectangle into rows and columns of same-size squares and count to find the total number of them.

Area (Second grade - T.13)

2.G.A.3 Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc., and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.